Fastener-stock-supplying mechanism for fastener-inserting machines



Dec. 25, 2923. 1,478,603

S. A. DOBYNE FASTENER STOCK SUPPLYING MECHANISM FOR 'FASTENER INSERTING MACHINES iled July 19 1918 3 Sheets-Sheet 1 Dec. 25, 1923. 1,4783% s. DOBYNE FASTENER STOCK SUPPLYING MECHANISM FOR FASTENER INSERTING MACHINES Filed'July 19, 1918 3 Sheets-Sheet 2 5. A. DOBYNE FASTENER STOCK SUPPLYING MECHANISM FOR FASTENER INSERTING MACHINES Filed July 19 1918 3 Sheets-Sheet 5 Patented Dec. 25, 1923.

entries stares aste easier STEPHEN A. DOBYNE, OF ST. LOUIS, MISSOURI, ASSIGNOR TO CHAMPION SHOE MA- CHINERY COMPANY, OF ST. LOUIS, MISSOURI, A CORPORATION OF MISSOURI.

FASTENER-STOCK-SUPPLYING MECHANISM FOR FASTENER-INSERTING MACHINES.

Application filed July 19, 1918. Serial No. 245,731.

To (ZZZ whom itmay concern V v I Be it known that I, STEPHEN A. DOBYNE, a citizen of the United States, and residing at St. Louis, Missouri, have invented the new and useful Improvement in Fastener- Stock-Supplying Mechanism for Fastener- Inser-ting Machines, of which the following is a specification.

This invention relates to fastener inserting machines, and more particularly to fastener stock supporting mechanism for such machines.

In fastener insertin machines, such, for instance, as shown and described in my application Serial No. 245,730, filed of even date herewith, a guide is provided for feeding a series of strands of fastener stock, in the form of connected fasteners or slugs. The fastener stockis. cut by suitable mechanism, and driven into the work, such as the sole or heel of a shoe. The fastener stock is wound on reels and this stock is unreeled and led to the fastener guiding and inserting mechanism. Since the fastener stock is, however, unusually heavy, difficulties are experienced in taking out the kinks and straightening the strands.

7 One of the objects of thisinvention, therefore, is to provide a fastener insertin machine, in which the fastener stock ree s are so supported as to provide long strands of fastener stock between the reels and the fastener inserting mechanism, in order H to straighten the fastener stockand take the kinks out of the same. I

Another object is to provide a reel support which will support one or more reels in such a manner as to permit quick removal and replacement of a reel, and which will support the reel in such a manner as to provide for a uniform feed of the fastener stock strands.

Another object isto improve the mechanism in detail of construction, to provide simple and reliable mechanism and which is.

economical to manufacture.

Further objects will appear from the de-' ure 3;

Figures 5 and 6 are perspective views of the two parts of a reel;

Figure 7 is a detail side elevation of the 'directing or guiding means for the strands of fastener stock and,

Figure 8 is a section on the line 88,

V Figure 7.

Referring to the accompanying drawings, 1 designates a machine column or rame which has mounted thereon a machine head 2 carrying the fastener inserting mechanism. This fastener inserting mechanism may be of the construction shown and described in my application referred to, and comprises, generally stated, a throat 3, a fastener stock guide 4 adapted to guide a series of strands of fastener stock to the throat, a feeding and cutting member 5 for cutting off a fastener or slug from the selected strand of fastener stock and a driver 6 for driving the fasteners or slugs, all of these parts being operated by the main drive shaft 7 as described in my application referred to.

The machine column has mountedthereon, a shaft 10 supporting the frame 11 of the reel support. For this purpose, this frame is provided with a hub 12 engaging the end of the shaft, and this hub is provided with a set-screw 13 for removably securing the frame in position. This frame is provided, as shown in Figures 2, 3 and 4 with a series of bearings 14 for receiving the shafts 15 of the reels, the reels being spaced by cross pieces 16 in which the bearings are formed, and these bearings are half round so as topermit ready removement or re placement of the reels. Referring now to Figures2 to 6 inclusive, the reel comprises a pair of plates 17 and 18, each formed preferably of cast metal, and having lugs 19 and 20 and 21 which interlock to form supports for the strands of fastener stock which, as shown in Figure 3, ma be a series of connected headed fasteners or as shown in Figure 7, a series of connected slugs B. The lugs 21 on the end plate18 are connected by a cross piece 22 cooperated with and engaging with the crosspiece 23 on the plate 17. The cross piece 22 has a hub 24 which is bored to receive the shaft or pintle 15 and which is received in the IOU comprising a section fixed to the frame and a section 41 is provided w1th bearlng opening 25 of the cross piece 23. The cross piece 22 has formed thereon or attached thereto, bosses 26, each of which receives the head 27 of a pin 28 which slides in the boss and through the plate, and is provided at its end with another head 29adapted to pass through a slot 30 in the cross piece 23. Each boss receives a spring 31 arranged on the pin 28 and bearing againstthe head 27. In assembling the reel, the heads 29 are placed in position, as shown in Figure 5, so as to pass through the slots 30and the heads 29 are then forcedout and given a quarter of a turn so as to lock them in position, as shown in Figure 4. In order to retain the heads in position, the cross piece 23 has struck up therefrom, lugs 32 which engage opposite sides of the head 29 to retain it in locked position. It will, therefore, be seen that this reel can be readily removed from the frame, the parts thereof separated, and the coil of fastener stock can then be readily placed on the reel and the reel assembledand replaced in its frame.

Referring now to Figures 2 to 4 inclusive,

mounted in a pair of lugs 35 is a shaft 36,

which has mounted thereon a series ofarms 37, each of which in turn has mounted loosely thereon, a weighted head 38 which has a leather or other form of facing 39 adapted to bear on and engage the coiled fastener stock on the reel. These weighted heads 38 hearing on the coiled fastener stock provide means for braking the reels, and therefore preventing overthrow, and also provide means for retaining the fastener stock against uncoiling. When a reel is to be removed, the head can, of course, bereadily swung back out of the way.

The frame has attached thereto, a case lugs 42 to permit this cover section to be movably supported on the shaft 36. This cover section is provided with slots43 permitting the fastener stock. to pass there- 2 through and the cover is also provided with a handle 44 to permit the manipulation of I the cover.

-Upon reference to Figure 8, it will be noted that the lowermost roll 52 has a deeper section 53 than the other rolls, while the roll 55 has a deeperjflanged section. These cooperating rolls receive the slug stock, which is of less width than the fastener stock, and therefore requires more positive means for guiding and directing it to the fastener stock guide 4. V i

It will be noted thatfthe'fastener stock reel support is mounted below the fastener inserting mechanism'so as to provide a long strand of fastener stock between the reel and the fastener inserting, guiding and directing means. The provision of such a long strand of fastenerv stock allowsthis fastener; stock to straighten; more readily from its coiled condition and prevents the formation of kinks. It will also be noted thaton account ofthe position of the reel,

the fastener stock is given a quarter turn before reaching the directing and straightv ening rolls, this also necessitates the provision of'a long strand in order to prevent twisting of'thestrandstock. Now, unless the reel support is placed on the machine column or frame belowthe fastener inserting mechanism, the provision of such a long strand is an impossibility, unless the machine is extraordinarily high or wide. The positioning of the reel support in the manner described maintains to the machine staple. 'As the fastener strands pass between the rolls 52 and 55, the fastener stock will be convolved, directed and delivered to the fastener stock guide 4 in ideal condition tobe formed into fasteners or slugs and driven.

It is obvious that various changes ma be departing from the spirit of this invention;

and it is. to be understood, thereforethat this invention is not to be limited to the specific details shown and described.

Having thus describedthe invention, what is claimed is: 7 Lin a strlng nailing machine having a guide for a string of connected nails, means for feeding and cutting the; string, means for inserting the nails, a source of nail string supply, and means arranged between said source of: supply and said guide, constructed' and arranged to twist the nail string to correct relation to saidguide.

n a string nailing machine having a guide for a string of connected nails, means for feeding and cutting the string, means for inserting the nails, asource of nail string supply, and means arranged between said source of supply and said guide and having a groove receiving the nailstring,

constructed and arranged to twist theinail string to correct relation to said guide.

- 3. In a string nailing-machine having a guide for astring of connected nails, means for feeding andcutting ,the string, means for inserting the nails, a source of, nail string supply, and a pair of cooperating rolls arranged between s aidsource; of sup ply and said guide, constructed and ararranged between the guide and the reels, ranged to twist the nail string to correct reconstruoted and arranged to twist the lation to said guide. strings into correct relation With said guide. 10

4. In a string nailing machine having a In testimony whereof I affix my signa- 5 guide for a string of connected nails, means ture this 6th day of October, 1917.

for inserting the nails, a plurality of reels for a plurality of nail strings, and means STEPHEN A. DOBYNE. 

